Whatman

Description

⚡ Filter faster, analyze smarter — don’t get left behind!

Whatman Grade 4 qualitative filter paper, 11.0 cm diameter, offers ultra-fast filtration with excellent retention of coarse particles sized 20-25 µm. Perfect for qualitative analytical techniques, rapid cleanup of biological fluids, and high-flow air pollution monitoring where fine particle collection is less critical. Comes in a convenient pack of 100 sheets.